// package etl
package etl

import (
	"strings"
)

// testVersion
const testVersion = 1

// Transform
func Transform(input map[int][]string) (r map[string]int) {
	r = make(map[string]int)
	for k, v := range input {
		for i := 0; i < len(v); i++ {
			r[strings.ToLower(v[i])] = k
		}
	}

	return
}
